To delete an editor from your site's Editor's page:
Click Data Lists and then click Entries in the administration menu.The following page will show the list of entries.
Check the in the delete column next to each Entry you wish to delete.
Click the Delete button at the top or bottom of the list of entries.
On the following page, you may uncheck the box next to any entry that you do not wish to delete. Click the Delete button at the top or bottom of the list to finally delete the entries you've selected.
A confirmation page will appear with a link back to the list of Entries.